English verb conjugation
OUGHT TO FRET

Regular verb: fret - fretted - fretted

Affirmation

Simple form	V-ing form
I ought to fret you ought to fret he ought to fret we ought to fret you ought to fret they ought to fret	I ought to be fretting you ought to be fretting he ought to be fretting we ought to be fretting you ought to be fretting they ought to be fretting
Perfect	V-ing perfect
I ought to have fretted you ought to have fretted he ought to have fretted we ought to have fretted you ought to have fretted they ought to have fretted	I ought to have been fretting you ought to have been fretting he ought to have been fretting we ought to have been fretting you ought to have been fretting they ought to have been fretting

Negation

Simple form	V-ing form
I oughtn't to fret you oughtn't to fret he oughtn't to fret we oughtn't to fret you oughtn't to fret they oughtn't to fret	I oughtn't to be fretting you oughtn't to be fretting he oughtn't to be fretting we oughtn't to be fretting you oughtn't to be fretting they oughtn't to be fretting
Perfect	V-ing perfect
I oughtn't to have fretted you oughtn't to have fretted he oughtn't to have fretted we oughtn't to have fretted you oughtn't to have fretted they oughtn't to have fretted	I oughtn't to have been fretting you oughtn't to have been fretting he oughtn't to have been fretting we oughtn't to have been fretting you oughtn't to have been fretting they oughtn't to have been fretting

Interrogative form

Simple form	V-ing form
ought to I fret? ought to you fret? ought to he fret? ought to we fret? ought to you fret? ought to they fret?	ought to I be fretting? ought to you be fretting? ought to he be fretting? ought to we be fretting? ought to you be fretting? ought to they be fretting?
Perfect	V-ing perfect
ought to I have fretted? ought to you have fretted? ought to he have fretted? ought to we have fretted? ought to you have fretted? ought to they have fretted?	ought to I have been fretting? ought to you have been fretting? ought to he have been fretting? ought to we have been fretting? ought to you have been fretting? ought to they have been fretting?

Interro-negative form

Simple form	V-ing form
oughtn't I to fret? oughtn't you to fret? oughtn't he to fret? oughtn't we to fret? oughtn't you to fret? oughtn't they to fret?	oughtn't I to be fretting? oughtn't you to be fretting? oughtn't he to be fretting? oughtn't we to be fretting? oughtn't you to be fretting? oughtn't they to be fretting?
Perfect	V-ing perfect
oughtn't I to have fretted? oughtn't you to have fretted? oughtn't he to have fretted? oughtn't we to have fretted? oughtn't you to have fretted? oughtn't they to have fretted?	oughtn't I to have been fretting? oughtn't you to have been fretting? oughtn't he to have been fretting? oughtn't we to have been fretting? oughtn't you to have been fretting? oughtn't they to have been fretting?